Well, in some fanfictions, Naruto might be promoted over Sasuke because Naruto has always been seen as the more positive and inspiring character. He has a strong will to protect his friends and the village, and his growth throughout the series is more in line with the traditional hero's journey. His ability to make friends and bring people together could be a reason for his promotion in the fanfiction.
Well, initially Naruto's possessiveness could be a result of his competitive nature. He sees other guys looking at Hinata and decides she's someone he wants to keep. Then, as he gets to know Hinata better, he discovers her kind heart and her loyalty. This makes him even more possessive. He starts to feel like she's the only one for him, and he'll do anything to keep her by his side. He might start to get jealous more easily and be more controlling in situations where he thinks Hinata's safety or their relationship is at risk.
One key moment could be when Naruto is training hard and Kakashi is secretly observing to make sure he doesn't overexert himself. Another might be during a dangerous mission where Kakashi keeps a close eye on Naruto to protect him from hidden enemies.
It could potentially mean that in the context of the fanfiction, Naruto has physically bent Anko in some way, perhaps in a combat or training scenario where he uses force to make her body bend. But without reading the specific fanfiction, it's hard to be certain.
The traditionalist elders might oppose Naruto. They are used to the old ways of running Konoha and may see Naruto's takeover as a threat to their power and influence.
Well, Naruto's control over physics could completely turn the plot upside down. He could use it to create new jutsus that defy normal physical laws. For example, he might be able to make objects move without any force being visibly applied, which could give him an edge in battles. This new power would also make his enemies have to re - evaluate their strategies against him.
The protagonist Wang Jingyang transmigrated to the Naruto World and obtained a special talent that could fuse all ninja bloodline powers. He showed great strength in the process of protecting Naruto. I hope you like my recommendation. Muah ~
His friends from Konoha like Sakura and Shikamaru might support him. Sakura could offer her medical skills to help any ailing Uzumaki members, and Shikamaru could use his intelligence to strategize for the clan's growth.
One possible consequence is that Naruto might lose control of his own actions. The Kyuubi is a powerful and often uncontrollable force. So, he could end up causing a great deal of destruction without meaning to. For example, he might attack his friends or allies in the heat of the moment as the Kyuubi's power overwhelms his own judgment.